Re: [Duplicity-talk] Restoring from the last full backup (Re: Difficulties with restore: 'Could not restore the following files. Please make sure you are able to write to them.')

[edgar . soldin]

hey Andrew,

as i wrote. according to your log the current (or latest) full is corrupt. see 
the list of backup chains to find the one before that.

and still. we asked you questions and rather like you to answer those as we 
need them to enhance duplicity for the future!

good luck ..ede

On 16.11.2021 10:58, andrew wrote:
> Hi Ede (and everyone),
>
> Thank-you for this advice.
>
> At the moment, my strategy to try and recover the missing mail in the backed-up 
> files from Thunderbird, is to step through the - in my case - weekly backups to 
> see if I can successfully restore a non-corrupt back-up. ie. iteratation until 
> uncorrupted back-up found. Is that - using your knowledge of the internal 
> workings of duplicity - a sensible strategy.
>
> My question about the full back-up was because I assume that this would not be 
> a corrupt copy - it's a kind of check-point. There would be no incremental 
> chains of data saved and the corruption is in the incremental chains. I suppose 
> that might be a false assumption but maybe it's a useful one? If not then what 
> can I assume in trying to recover files?
>
> Thank-you for helping me understand what strategy I might follow.
>
> Best wishes,
>
> Andrew
>
> Andrew Wood, Oxford
>
> - o -
>
> On 15/11/2021 11:08, edgar.soldin--- via Duplicity-talk wrote:
> > hey Andrew,
> >
> > On 15.11.2021 11:01, andrew via Duplicity-talk wrote:
> > > Hi everyone,
> > >
> > > How do I force duplicity to restore from the last full backup which it made? I 
> > > can see the options for creating a new full back-up but not restoring it. 
> > > Indeed, how do I find out when the last full backup was made.
> > >
> > > The manual (this one: https://linux.die.net/man/1/duplicity) isn't at all 
> > > helpful in this regard. Thanks.
> >
> > the most recent official online man page is located on
> > https://duplicity.nongnu.org/docs.html
> > under Synopsis you find
> > "
> > duplicity [restore] [options] [--file-to-restore <relpath>] [--time
> > time] source_url target_directory
> > "
> >
> > you do _not_ select a backup but rather a point in time to restore .
> > accepted time formats are explained here.
> >
> > you may consult your output.txt which contains a human readable list
> > of your backup chains or utilize
> > "
> > duplicity collection-status [options] [--file-changed <relpath>] target_url
> > "
> > to show them again.
> >
> > your current backup chain (latest) contains the corruption, so choose
> > the chain before and give a point in time after the full but before
> > the next incremental.
> >
> > good luck ..ede/duply.net
> >
> > ps. you still owe us answers to our questions from before.
> >
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